{"id":18223,"date":"2024-04-25T05:34:19","date_gmt":"2024-04-25T05:34:19","guid":{"rendered":"https:\/\/soicau4015.minhngocxoso.com\/?p=18223"},"modified":"2024-04-25T05:34:19","modified_gmt":"2024-04-25T05:34:19","slug":"dan-de-tong-la-gi-uu-va-nhuoc-diem-cua-cach-danh-dan-de-tong","status":"publish","type":"post","link":"https:\/\/loxiendepnhat.com\/dan-de-tong-la-gi-uu-va-nhuoc-diem-cua-cach-danh-dan-de-tong\/","title":{"rendered":"d\u00e0n \u0111\u1ec1 t\u1ed5ng l\u00e0 g\u00ec? \u01b0u v\u00e0 nh\u01b0\u1ee3c \u0111i\u1ec3m c\u1ee7a c\u00e1ch \u0111\u00e1nh d\u00e0n \u0111\u1ec1 t\u1ed5ng"},"content":{"rendered":"\n
D\u00e0n \u0111\u1ec1 l\u00e0 c\u00e1ch ch\u01a1i l\u00f4 \u0111\u1ec1 \u0111em \u0111\u1ebfn nhi\u1ec1u c\u01a1 h\u1ed9i chi\u1ebfn th\u1eafng l\u1edbn. C\u00f3 nhi\u1ec1u c\u00e1ch ch\u01a1i theo d\u00e0n kh\u00e1c nhau. Trong \u0111\u00f3 \u0111\u00e1nh d\u00e0n \u0111\u1ec1 t\u1ed5ng l\u00e0 ph\u01b0\u01a1ng ph\u00e1p ch\u01a1i \u0111\u01a1n gi\u1ea3n, d\u1ec5 hi\u1ec3u v\u00e0 \u0111\u01b0\u1ee3c nhi\u1ec1u ng\u01b0\u1eddi l\u1ef1a ch\u1ecdn tham gia. \u0110\u1ec3 hi\u1ec3u h\u01a1n v\u1ec1 d\u00e0n \u0111\u1ec1 t\u1ed5ng l\u00e0 g\u00ec v\u00e0 \u01b0u, nh\u01b0\u1ee3c \u0111i\u1ec3m c\u1ee7a c\u00e1ch ch\u01a1i n\u00e0y b\u1ea1n h\u00e3y tham kh\u1ea3o b\u00e0i vi\u1ebft sau. <\/p>\n\n\n\n
D\u00e0n \u0111\u1ec1 t\u1ed5ng<\/strong> l\u00e0 m\u1ed9t ph\u01b0\u01a1ng ph\u00e1p soi c\u1ea7u r\u1ea5t ph\u1ed5 bi\u1ebfn \u0111\u01b0\u1ee3c nhi\u1ec1u ng\u01b0\u1eddi \u00e1p d\u1ee5ng. C\u00e1ch ch\u01a1i n\u00e0y t\u01b0\u01a1ng \u0111\u1ed1i \u0111\u01a1n gi\u1ea3n v\u00e0 d\u1ec5 hi\u1ec3u, \u0111\u1eb7c bi\u1ec7t l\u00e0 \u0111em l\u1ea1i hi\u1ec7u qu\u1ea3 cao. V\u1edbi c\u00e1ch ch\u01a1i n\u00e0y tr\u01b0\u1edbc ti\u00ean b\u1ea1n c\u1ea7n ph\u1ea3i t\u00ecm hi\u1ec3u t\u1ed5ng c\u1ee7a c\u00e1c d\u00e0n \u0111\u1ec1 trong tu\u1ea7n v\u1eeba qua. Sau \u0111\u00f3 quan s\u00e1t t\u1eeb t\u1ed5ng 0-9, c\u00f3 thi\u1ebfu ph\u1ea7n n\u00e0o kh\u00f4ng? N\u1ebfu c\u00f3 th\u00ec th\u1ef1c hi\u1ec7n gh\u00e9p v\u1edbi d\u00e0n t\u1ed5ng \u0111ang nu\u00f4i.<\/p>\n\n\n\n V\u00ed d\u1ee5: Trong tu\u1ea7n v\u1eeba qua xu\u1ea5t hi\u1ec7n t\u1ed5ng \u0111\u1ec1 1, 7, 0, 9, 2, 8. Trong danh s\u00e1ch t\u1ed5ng tr\u00ean thi\u1ebfu t\u1ed5ng 4,5,6. V\u1eady th\u00ec khi gh\u00e9p c\u1ea7u d\u1ef1a tr\u00ean nh\u1eefng t\u1ed5ng ch\u01b0a xu\u1ea5t hi\u1ec7n b\u1ea1n s\u1ebd c\u00f3 \u0111\u01b0\u1ee3c d\u00e0n \u0111\u1ec1 464, 454, 656. Suy ra b\u1ea1n c\u00f3 \u0111\u01b0\u1ee3c 6 c\u1eb7p s\u1ed1 \u0111\u1ec3 ch\u01a1i theo d\u00e0n v\u00e0o tu\u1ea7n sau. C\u01a1 h\u1ed9i chi\u1ebfn th\u1eafng d\u1ef1a v\u00e0o d\u00e0n \u0111\u1ec1 n\u00e0y s\u1ebd r\u1ea5t cao.<\/p>\n\n\n\n D\u00e0n \u0111\u1ec1 nu\u00f4i t\u1ed5ng c\u00f3 2 lo\u1ea1i c\u01a1 b\u1ea3n \u0111\u00f3 l\u00e0 d\u00e0n \u0111\u1ec1 t\u1ed5ng<\/strong> tr\u00ean 10 v\u00e0 d\u00e0n \u0111\u1ec1 t\u1ed5ng d\u01b0\u1edbi 10. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 c\u00e1c con s\u1ed1 t\u01b0\u01a1ng \u1ee9ng v\u1edbi d\u00e0n \u0111\u1ec1 b\u1ea1n c\u00f3 th\u1ec3 tham kh\u1ea3o. <\/p>\n\n\n\n \u0110\u00e2y l\u00e0 d\u1ea1ng d\u00e0n \u0111\u1ec1 c\u00f3 t\u1ed5ng c\u1ee7a 2 ch\u1eef s\u1ed1 d\u01b0\u1edbi 10. V\u00ed d\u1ee5: <\/p>\n\n\n\n D\u00e0n \u0111\u1ec1 t\u1ed5ng d\u01b0\u1edbi 10 bao g\u1ed3m r\u1ea5t nhi\u1ec1u con s\u1ed1 kh\u00e1c nhau. T\u1eeb nh\u1eefng c\u00f4ng th\u1ee9c soi c\u1ea7u \u0111\u01b0\u1ee3c chia s\u1ebb \u1edf tr\u00ean b\u1ea1n s\u1ebd d\u1ec5 d\u00e0ng t\u00ednh \u0111\u01b0\u1ee3c c\u00e1c con s\u1ed1 c\u00f3 t\u1ed5ng d\u01b0\u1edbi 10. Theo \u0111\u00f3 d\u00e0n \u0111\u1ec1 n\u00e0y bao g\u1ed3m 55 con s\u1ed1 \u0111\u00f3 l\u00e0: <\/p>\n\n\n\n 00 \u2013 01 \u2013 02 \u2013 03 \u2013 04 \u2013 05 \u2013 06 \u2013 07 \u2013 08 \u2013 09<\/p>\n\n\n\n 10 \u2013 11 \u2013 12 \u2013 13 \u2013 14 \u2013 15 \u2013 16 \u2013 17 \u2013 18<\/p>\n\n\n\n 20 \u2013 21 \u2013 22 \u2013 23 \u2013 24 \u2013 25 \u2013 26 \u2013 27<\/p>\n\n\n\n 30 \u2013 31 \u2013 32 \u2013 33 \u2013 34 \u2013 35 \u2013 36<\/p>\n\n\n\n 40 \u2013 41 \u2013 42 \u2013 43 \u2013 44 \u2013 45<\/p>\n\n\n\n 50 \u2013 51 \u2013 52 \u2013 53 \u2013 54<\/p>\n\n\n\n 60 \u2013 61 \u2013 62 \u2013 63<\/p>\n\n\n\n 70 \u2013 71 \u2013 72<\/p>\n\n\n\n 80 \u2013 81<\/p>\n\n\n\n 90<\/p>\n\n\n\n M\u1ed9t \u0111i\u1ec1u b\u1ea1n c\u1ea7n l\u01b0u \u00fd khi t\u00ednh d\u00e0n \u0111\u1ec1 t\u1ed5ng d\u01b0\u1edbi 10 \u0111\u00f3 l\u00e0: D\u00e0n \u0111\u1ec1 n\u00e0y \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng trong tr\u01b0\u1eddng h\u1ee3p t\u1ed5ng gi\u1ea3i \u0111\u1eb7c bi\u1ec7t c\u1ee7a ch\u1ee7 nh\u1eadt v\u1ec1 d\u01b0\u1edbi 10. Ho\u1eb7c l\u1ea5y t\u1ed5ng \u0111\u1ec1 ng\u00e0y th\u1ee9 2 v\u1ec1 d\u01b0\u1edbi 10 \u0111\u1ec3 l\u00e0m d\u00e0n \u0111\u1ec1 nu\u00f4i trong tu\u1ea7n \u0111\u00f3. <\/p>\n\n\n\n D\u00e0n \u0111\u1ec1 c\u00f3 t\u1ed5ng tr\u00ean 10 l\u00e0 t\u1eadp h\u1ee3p c\u1ee7a nh\u1eefng s\u1ed1 t\u1eeb 0-99 m\u00e0 c\u00f3 t\u1ed5ng l\u1edbn h\u01a1n 10. \u0110\u00e2y l\u00e0 d\u00e0n \u0111\u1ec1 ng\u01b0\u1ee3c l\u1ea1i so v\u1edbi d\u00e0n \u0111\u1ec1 d\u01b0\u1edbi 10. <\/p>\n\n\n\n V\u00ed d\u1ee5: S\u1ed1 59 c\u00f3 t\u1ed5ng l\u00e0 5+9=14 >10 n\u00ean 59 thu\u1ed9c d\u00e0n \u0111\u1ec1 c\u00f3 t\u1ed5ng l\u1edbn h\u01a1n 10. <\/p>\n\n\n\n \u0110\u1ec3 t\u1ea1o \u0111\u01b0\u1ee3c d\u00e0n \u0111\u1ec1 t\u1ed5ng tr\u00ean 10 c\u00e1c b\u1ea1n ch\u1ec9 c\u1ea7n th\u1ef1c hi\u1ec7n theo v\u00ed d\u1ee5 tr\u00ean l\u00e0 \u0111\u01b0\u1ee3c. Theo \u0111\u00f3 d\u00e0n \u0111\u1ec1 m\u00e0 c\u00e1c cao th\u1ee7 chia s\u1ebb \u0111\u1ebfn b\u1ea1n \u0111\u00f3 l\u00e0:<\/p>\n\n\n\n 19<\/p>\n\n\n\n 28 \u2013 29<\/p>\n\n\n\n 37 \u2013 38 \u2013 39<\/p>\n\n\n\n 46 \u2013 47 \u2013 48 \u2013 49<\/p>\n\n\n\n 55 \u2013 56 \u2013 57 \u2013 58 \u2013 59<\/p>\n\n\n\n 64 \u2013 65 \u2013 66 \u2013 67 \u2013 68 \u2013 69<\/p>\n\n\n\n 73 \u2013 74 \u2013 75 \u2013 76 \u2013 77 \u2013 78 \u2013 79<\/p>\n\n\n\n 82 \u2013 83 \u2013 84 \u2013 85 \u2013 86 \u2013 87 \u2013 88 \u2013 89<\/p>\n\n\n\n 91 \u2013 92 \u2013 93 \u2013 94 \u2013 95 \u2013 96 \u2013 97 \u2013 98 \u2013 99<\/p>\n\n\n\n\u0110\u00e1nh d\u00e0n \u0111\u1ec1 t\u1ed5ng<\/strong> theo nh\u1eefng c\u00e1ch n\u00e0o?<\/strong><\/h2>\n\n\n\n
D\u00e0n \u0111\u1ec1 t\u1ed5ng d\u01b0\u1edbi 10 <\/em><\/strong><\/h3>\n\n\n\n
D\u00e0n \u0111\u1ec1 t\u1ed5ng tr\u00ean 10 <\/em><\/strong><\/h3>\n\n\n\n